Fix the wrong condition for EnsureLoopForwardProgressTest The original CL should have used the angle_enable_glsl condition to disable the test on iOS, since this variable is not enabled on that platform. Bug: b/426055001 Change-Id: Ia53c066dcbc473358ae89e625abcf83660bd019a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6756696 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Sunny Sachanandani <sunnyps@chromium.org>